Azimuth swings were done with the cband receiver on 13jan16. ... clear weather, data taken in the afternoon . ... For dynamic spectra . compute median band pass, divide this into all spectra . find rfi free section of band, compute median value for each spectra and then divide each spectra by these values . ... 4950 Mhz band azswing (.gif) . ... You can see that lots of the 20 Mhz rfi's overlap each other in frequency. ... The 15jan16 data was at a fixed azimuth, so not all rfi's peaked up.. ...

... 2.3 Data acquisition Spectra generated by the Multibeam correlator contain the usual structure seen in spectra from other H i instruments: a bandpass spectrum which is the sum of the sky , ground and receiver temperatures multiplied by the product of the filters in the receiver chain; superimposed on this is a noise ... Note also that sources extended much beyond ,40 arcmin can be imaged poorly in HIPASS images because of the bandpass sidelobe effect described in Section 3.3. ...